Publishers
- Souvenir Press 13
- Spa Books 1
- Spantech & Lancer 1
- SPCK 1
- Speciality Press 5
- Speedman Press Ltd 1
- Spellmount 2
- Spellmount Ltd. 9
- Spindlewood 2
- Spink & Son Ltd. 1
- Spire Books Ltd 1
- Spokesman Books 1
- Sporting Handbooks Ltd. 1
- Spottiswoode & Co. 1
- Spottiswoode, Ballantyne & Co. Ltd. 1
- Spring Books 6
- Springer 92
- Springer ScienceBusiness Media 1
- Springer-Verlag 29
- Spur Publications 3
- Squadron Signal Publications 7
- Square One Publications 2
- St Matthew's Press 1
- St. Anthony's Press 2
- St. Catherine Press 3
- St. Clements Press, Ltd. 1
- St. Edward's School Society 5
- St. James Press 1
- St. Lukes Press 1
- St. Martin's Press, New York 2
- St. Nicholas Books 1
- Stacey International 1
- Stackpole Books 11
- Stainer & Bell Ltd. 1
- Standaard Uitgeverij 1
- Standard Art Book Co. Ltd. 1
- Stanford Maritime 1
- Stanford University Press 5
- Stanley Books 2
- Stanley Paul 7
- Stanley Paul & Co 2
- Stanley Paul & Co. 1
- Stanley Paul & Co. Ltd. 1
- Stanley Thornes (Publishers) Ltd. 1
- Stanton And Van Vliet Co. 2
- Staples Press 1
- Staples Press Ltd. 1
- Starsons 1
- Steam Boat Association 1
- Steam Image 1
- Stecher Litho. Co. 3
- Steiger Verlag Innsbruck 1
- Steimatzky 1
- Stenlake Publishing 8
- Stephen Morrison 1
- Sterling Children's Books 1
- Steve Ball 1
- Steve Russell 2
- Stevenage Museum 1
- Stewart Williams 68
- Stilgrafica Srl 1
- Stobart & Son 1
- Stobart Davies 1
- Stoddart Publishing Co Ltd. 1
- Stow-on-the-Wold and District Civic Society 1
- Strahan & Co. Ltd. 1
- Strand Publications 11
- Strathwood Ltd 4
- Stratus 2
- Strawberry Press 3
- Strome & Co. 1
- Structure 1
- Struik 1
- Struik Nature 1
- Stuart & Richards 1
- Student Christian Movement Press 1
- Studio Editions 11
- Studio Vista 5
- Sudwest 1
- Suffolk Naturalists' society 1
- Suhada Press 1
- Sully & Kleinteich 1
- Sunburst Books 1
- Sunshine House, Inc. 1
- Sunshine Publishing Company 1
- Superprofile Ltd. 2
- Surrey Wildlife Trust 2
- Survey Of Cardiff 2
- Sutton Publishing 38
- Svensk Byggtjanst 1
- Swan Hill Press 10
- Swan Sonnenschein & Co. 1
- Swan Sonnenschein & Co. Ltd. 2
- Swan Sonnenschein, Lowrey & Co. 1
- Swansea Cricket & Footbal Club 1
- Swansea Philatelic Society 1
- Swedish Aviation Historical Society 1
- Swedish Natural Science Research Council 2
- Sweet & Maxwell 1
- Swift Children'S Books 2